12615017664317 has 2 divisors, whose sum is σ = 12615017664318. Its totient is φ = 12615017664316.

The previous prime is 12615017664313. The next prime is 12615017664323. The reversal of 12615017664317 is 71346671051621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12491834915641 + 123182748676 = 3534379^2 + 350974^2 .

It is a cyclic number.

It is not a de Polignac number, because 12615017664317 - 2² = 12615017664313 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12615017664311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6307508832158 + 6307508832159.

It is an arithmetic number, because the mean of its divisors is an integer number (6307508832159).

Almost surely, 2^{12615017664317} is an apocalyptic number.

It is an amenable number.

12615017664317 is a deficient number, since it is larger than the sum of its proper divisors (1).

12615017664317 is an equidigital number, since it uses as much as digits as its factorization.

12615017664317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1270080, while the sum is 50.

The spelling of 12615017664317 in words is "twelve trillion, six hundred fifteen billion, seventeen million, six hundred sixty-four thousand, three hundred seventeen".